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Calculate the value of the equilibrium constant, keq, for the reaction at 25°C.

User Brainray
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Final answer:

To calculate the equilibrium constant (Keq) for a reaction at 25°C, you need the equilibrium concentrations of products and reactants. Substitute these into the equilibrium expression Keq = [products]^coefficients / [reactants]^coefficients.

Step-by-step explanation:

You are asked to calculate the equilibrium constant (Keq) for a reaction at 25°C. To find Keq, you would typically use the formula Keq = [products]^coefficients / [reactants]^coefficients once the equilibrium concentrations are known. If you have the equilibrium concentrations of the products and reactants for a particular reaction at equilibrium, you can directly calculate Keq by substituting these values into the equilibrium expression.

For instance, if we have a reaction where the equilibrium concentration of HI is 0.156 M, H2 is 0.022 M, and I2 is also 0.022 M, and the reaction has a form of H2 + I2 → 2HI, Keq would be calculated as follows:

Keq = [HI]² / ([H2] × [I2]) = (0.156)² / (0.022 × 0.022)

The value of Keq is dimensionless and depends on the temperature. At 25°C, constants like the ion-product constant for water (Kw) are also available to help you calculate missing equilibrium concentrations.

User Silentsudo
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